Hatch construction



Patented Nov. 23, 1937 APATENT OFFICE.

I 2.100.130 HATCH CoNsTnUcrioN Charles David Bonsall,

Pittsburgh, Pa., `assignor to P. H. Murphy Company, New Kensington Pa., a, corporation of Pennsylvania l Application September 4, 1937, Serial No. 162,414

Claims.

10 is to devise a simple, economical and durabley hatch construction that will prevent the transfer of heat by the metal hatch frame or liner past the hatch plug. 'Ihe invention consists in the hatch construction and in the parts and in the combinations and arrangements oi' parts hereinafter described and claimed.

In the accompanying drawing, which forms part of this specification and wherein like sym.- bols refer to like parts wherever they occur,

lllg. 1 is a vertical transverse section through a portion of a car roof provided with a hatch construction embodying my invention;

Fig. 2 is a vertical longitudinal section through the roof on the line 2--2 in Fig. 1; and Figs. 3 and 4 are views similar to Figs. 1 and 2, respectively, illustrating a modified form of the invention.

In the accompanying drawing, my invention is illustrated in connection with a metal refrigerator car roof comprising an end roof sheet I and an intermediate roof sheet 2 that have their eaves `end portions supported on and secured to an eaves angle 3 that is fixed to the side plate 4 of the car. Said end and intermediate roof sheets are provided along their adjacent margins with upstanding flanges 5 that are covered and secured together by a seam cap 6. At the end of the car, the end sheet l is secured to an end angle 1 fixed to a metal end plate 8.

The roof is provided with a hatchway that leads downwardly into the interior of the car through hatch openings provided therefor in the end roof sheet I and a frame 9 of wood or other suitable Inon-metallic material located therebelow. A metal hatch frame or liner I0 preferably comprises a relatively wide upper portion II located. above the general level of the roof, a relatively narrow lower portion I2 that ts within the upper portion of the wooden hatch frame 9, and a shoulder or web portion i3 that rests upon the top of said wooden hatch frame. As shown in the drawing. the wide upper portion II of the metal hatch frame Ill has upwardly converging side walls that terminate at the top of said frame in an inturned flange Il that has a (Cl. 10S-5.4)

downturned lip and constitutes a seat for a suitable hatch cover (not shown); and the narrow lower portion I2 of said frame has downwardly converging side walls that form the upper portion of a tapered seat or a tapered insulated hatch plug I5.

I'he end roof or hatch sheet I is provided around the hatch opening therein with an upstanding flange I6 that is secured to the outer faces of the upwardly converging side walls of the wide upper portion Il of the metal hatch frame I0 by a weld I6a that extends continuously along the top edge of said flange. l

The lower portion of the tapered hatch plugl seat is formed by a frame or insert I1 of mahogany or other hard non-metallic material adapted to resist wear, warping, moisture and decay. 'Ihis hardened frame fits within a channel I8 provided therefor inside the wooden hatch frame 9 and forms a flush continuation of the lower hatch plug seat portion of the metal hatch frame or liner I0. The wooden hatch frame 9 is provided belowthemahogany or other hardwood insert with a metal frame or liner I9 whose lower portion is bent outwardly beneath the ceiling 20 of the car and whose upper portion is bent'into the form of a channel 2| that snugly fits within said channel I8 beneath the hardwood filler or insert I'I therein.

In the modification shown in Figs. 3 and 4, the entire lower portion of the opening in the wooden hatch frame 9a is lined with mahogany tongueand-grooved boards Ila that nt within a. recess I8a provided therefor in said frame and are disposed ilush with and forma continuation of the inner surface of the downwardly and inwardly inclined narrow lower portion I2 of the metal hatch frame I il. This mahogany liner Ila extends above the lower edge of the metal hatch frame I0; and a layer-oi waterproof insulating paper I9a is interposed between said liner and the recess I8a provided therefor in the wooden hatch frame 9a.

'I'he hereinbefcre described hatchway construction has several advantages. The metal hatch frame or liner terminates short of the bottom of the insulated hatch plug insert of wood and is disposed ilush with the plug seat-forming portion of the mahogany filler or insert in the wooden hatch frame, thereby preventing the metal hatch frame from transmitting .heat between the spaces above and below said hatch plug'. The mahogany insert or iiller provides a smooth surface for obtaining a close fit of the hatch plug therein: it also provides a hard, smooth wear-resistant surface; and it also serves. in the construction shown in Figs. l and 2, as a means for rmly anchoring the upper portion of the lower metal liner or frame to the wooden hatch frame. In the construction shown in Figs. 3 and 4, the mahogany insert or liner for the wooden hatch frame extends clear to the lower end thereof and thus serves after the manner of the lower metal liner or frame of Figs. 1 and 2 as a wear member for said frame; and the strip of paper interposed between said frame and said liner serves as an insulator and to protect the wooden hatch frame against moisture.

What I claim is:

1. A hatch construction for a railway car comprlsing a non-metallic hatch frame, an insulated hatch plug, and a metallic hatch fr'ame or liner fitted in said main frame and cooperating therewith toform the outer end portion only of a seat for said hatch plug.

' 2. A hatch construction for a car roof comprising anon-metallic hatch frame, a non-metallic 4hatch plug, and a metallic hatch frame or liner extending downwardly into said non-metallic hatch frame, said non-metallic hatch frame forming the lower portion of a seat for said hatch plug A and said metallic hatch frame forming the upper portion of said seat.

3. A hatch construction fora refrigerator car -roof comprising a non-metallic hatch frame, a plug therefor, and a metallic frame or liner extending downwardly into said non-metallic hatch frame and cooperating4 therewith to form the upper portion only of a seat for said plug.

4. A hatch construction for a refrigerator car roof comprising a non-metallic hatch frame, an

insulated hatch plug, and a metallic frame or liner extending downwardly into said non-metallic hatch frame and cooperating therewith to form a seat for said hatch plugfthe lower plug seat-,forming portion of said metallic frame terminating short of the underside of said plug and ilush with the seat-'forming portion of said non-metallic hatch frame, thereby preventing transmission of heat by said metallic frame past said plug.

5. A hatch construction for a refrigerator car roof comprising a non-metallic hatch frame, a metallic frame or liner fitting in said main frame and terminating short of the lower end thereof,v and an insulated hatch plug having its upper portion seated in the lower portionof said metallic frame and its lower portion seated in the portion of the non-metallic hatch frame located therebelow.

6. A hatch construction for a refrigerator car roof comprising a non-metallic hatch frame having a recess in the inner face thereof, a filler mounted in said recess, a metal frame or liner ex tending downwardly into said non-metallic hatch frame in flush overlapped relation with the upper portion oi' said ller, and a hatch plug having its upper portion seated in said metal hatch frame or liner and its lower portion seated in said ller.

7. A hatch construction for a railway car comprising a wooden hatch frame having a recess in the inner face'thereof, a hardwood filler mounted in lisaid recess, a metal hatch frame or liner extending into the outer end oi' said wooden hatch frame in flush overlapped relation with the outer end oi' said hardwood filler, and a hatch plug having its outer end portion seated in the inner end of said metal hatch frame or liner and its inner end seated in said hardwood filler.

8. A hatch construction for an insulated car roof comprising a non-metallic hatch frame, a metallic hatch frame or liner fitting in said nonmetallic hatch frame and terminating short of the lower end thereof, and an insulated hatch plug having its upper portion seated in the lower portion of said metallic hatch frame and its lower portion seated in the portion of the non-metallic hatch frame located therebelow.

9. A hatch construction for an insulated car roof comprising a non-metallic main frame having a channel in the inner face thereof, a metallic frame or liner fitting in said main frame and terminating adjacent to the upper edge of said channel, a non-metallic ller in said channel, an insulated hatch plug having its upper portion seated in the lower portion of said metallic frame and its lower portion seated in said filler, and a metal liner for said channel and the portion of the non-metallic main frame located therebelow.

10. A hatch construction for a refrigerator car roof comprising a non-metallic hatch frame having a recess in the inner side thereof, a non-metallic ller in said recess, va metallic hatch frame or liner fitting in said non-metallic hatch frame with its lower end terminating adjacent to said filler, an insulated hatch plug having its upper portion seated in the lower portion of said metallic hatch frame and its lower portion seated in said filler, and a layer of Iwaterproof material iny CHARLES DAVID BONSALL. 

